Sawdust-conveyer.



J. GLASS. SAWDUST GONVEY'ER.

APPLICATION I'ILED AUG. 10, 1909 Patented Jan. 11.1910.

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,Be itl-kn'own 'that'I, JOHN CLASS, a' citi zen of'tlieflUnitedStates, residing at Cant-on,

in the county of Stark and State of Ohio, have invented certain ne'w'aiid useful Improvements in? Sawdust -Conveyers; andI do hereby -d eclare'thc 'followiiig to be'afull, clear, "and exactidescription?of the invent-ioinsuh i. wi'll enable others skilled in the ap'pe rta-insi t' niake and use thesame;

I Tlhe,..object jof the 'piesent,invention is to provideaneaiis j'or removing sawdust from 1Q?5 -,:-P Hi Pls structioii-and at s ne 'n efdesigned to be so er gted fi'om millf proper through suita le gearingsi'cotin with the saw mandrel-or its equivalent ni raw n F gure l 's a 'vi'ew' show ing a, ortionpfa awinill and illustrating I 'ereby; together with the upper and. lower springboard in' proper relationship inlreferencei to the endless conveyer. chain. Eig. 2 is a -.horiz'ontal section ofrthegearbox,showingthe miter gear for drivingtile endless, chain and" conveyer d Similar numerals o f reference indicate corresponding parts in all vthefigures of'the the en less conveyer'eh'ain and'fthe conveyer drawing;

- 1 In the, accompanying drawing, 1 represents-the sawmillf frame which,}is of the usual construction, upon the track 1 is mounted the usual I traveling carriage 2. These parts within-themselves form no particular part of the present invention.

Below. the saw. 3 and preferably at one 'sidethereof a'relocated two shafts, 4 and 5,

which shafts are geared together by. means of the beveled gear wheels; 6. Theshaft 4 is provided with the pulley], which pulley is driven by means of the belt 8leading from the pulley 9 mounted upon the saw shaft 10; but it will beunderstood that this earing may be varied without departing romthe nature of the present invention as to the only object is to provide a a means for imparting motion to the endless chain -11 by means of a suitable sprocket wheel 12 fixed upon the shaft 5.

The endless chain is extended upward and butward from thsaw pit a suitable distance and isheld iii-proper position by means of the sprocket wheel 13, which steamed ofiLetters Patent Application-filed August 10, 1909. Serial No. 512,226

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' Patented Jan. 11, .1910.

sprocket wheel is supported by means of the standard 14, which standard may be of any desired construction as its only purpose is to support the shaft upon which the sprocket wheel 13 mounted and to hold the endless chain in proper elevation: The construction of the standard as to its d'etailed construction is immaterial but owing to the fact that more or less pull toward the sawmill pit takes place the stamlard should be provided with a suitable yoke such as 14, to which aguy rope may be attached and the guy rope secured in the usual inanner. It is quite well understood that in sawmill conveyers of this class there is considerable vibration of the members of the endless chain,'owing to the fact that the pull or strain is not uniform at all times.

It is also well understood that the lower extended outward a suitable distance from the frame 17, which outward extended por tion is freeto spring upward, or in other words the extended portion is tree to movc up when pressure is liirought against the bottom or underside of the spring-board 16, at a point or. points beyond the frame 17. This spring-board is of importance, owing to the fact that the lower member of the endless chain ll can be held in a lowered horiaontalpositiou for a distance and at the same time permit a vibration of the lower member, and at thesamc'timeholding said lower iiiembe'r of the endless-chain with sufficient force to prevent the conveyer blades from riding over coarse material such as bark and other material likely to-accumulatc in a sawmill pit.

For the purpose of guiding the upper member of the endless chain or more specificallythe return member down as it moves down into the saw pit and under the saw the curved guide board 18 is provided, which is connected to the sawmill frame and tothe frame l'f in any convenient and well known manner. Thisguide board 18 is exllO tended a distance outward and upward from the frame 17 and its outer tree end-is thus adapted to engage the returning blades for the purpose of guiding the said blades and the chain 11 to which they are attached and quieting the vibrations of the same and carrying the said blades and chain to a sufficient depth in the pit to clear the saw 3.

Especial attention is directed to the fact that the spring board 16 and the guide board 18 are connected to-and supported by the same frame 17, which frame in turn is condescribed, a sawmill structure and a saw pit,

nected to and supported by the sawmill carriage track 1-. One of the principaladvantages of this construction, is that the spring board, guide-board and frame may be put together as a single structure and as such may be lowered into the pit and connected to the track without the necessity of the adjustment and attachment of the various parts of which it is composed, thus reducing the amount of labor and trouble in erecting the device for operation.

It is also to be noted that the two shafts 4 and 5 together with the immediately connected parts are supported by and attached tothe sawmill frame 1 by means of suitable braces 19. It will thus be seen that the shafts 4.- and 5 and the immediately connected parts may be lowered into position in the pit and pro rly adjusted with very little trouble and abor in much the same manner and for much the same reason as that referred to in the case of the sprin board 16 and guide board 18, as the sai shafts are connected to the frame 1 and by the proper placing of the frame 1, the said shafts are brought into proper position.

Having fully described my invent on what I claim as new and desire to secure by Letters Patent, is-

1. The combination of a sawmill including a frame and a. carriage, an endless conendless sawdust conveyer and a spring board located above the lower member of the sawdust conveyer, substantially as and for the purpose specified.

3. The combination with [a sawmill including a frame and a carriage,'an endless sawdust conveyer, means for actuating the endless sawdust conveyer and a sprin -board dust conveyer,"a guide board located above the upper member of the sawdust conveyer,

fied.

4. In a sawdust conveyer of the character a sprocket wheel located in said it, means less chain passing over said sprocket wheel and provided with conveyer blades, said chain extending horizontally across the bot:

extended upwardly and running over a secguide board connected to and supported by a common frame, which frame is connected the said spring board adapted to hold the lower member of said chain in a lowered provided with conveyer blades, a second sprocket wheel located outside 0 said pit said endless chain passing over d secon board located in said pit beneath the saw? ported by the. same, said spring board adapted to nude the lower member of said chain in sai pit across the bottom thereof in its outward movement and the said pit.

In testimony that I claim the above, I

presence of two witnesses.

- JOHN CLASS.

. Witnesses:

Jos. J. Hosum, Insure Ln'rz.

substantially as and for the purpose speci-- tom of said pit and having its outer portionto and supported by the sawmillstructure,

chain passing over said sprocket wheel and sprocket wheel and a spring boardand guideinill structure and conndcted to and sup.

located above the lower member of t e sawforrotating said sprocket whee an end-g ond sprocket wheel, and a spring board and horizontal Cposition in said pit and the said adapted to engage the returning 10s" have hereunto subscribed my name in the 'ide board 9 adapted to guide the upper mem er of said chain in its returning movement intosaid' 

